BBC news 2011-05-20 加文本

 词汇讲解：

1. momentous adj. 重大的, 严重的
例句：The momentous news was that war had begun.
重大的新闻是战争已经开始。

2. scope n. 余地, 机会；(处理、研究事务的)范围
例句：Such subjects are not within the scope of this book.
这样的问题不在本书的讨论范围之内。

3. pledge n. 保证; 誓言；誓约
例句：The government should fulfil its pledge.
政府应该履行其诺言。

4. shift n. 转换, 转变
例句：A sudden shift in the wind warned of the coming storm.
风向的突然改变预示暴风雨来临。

5. tackle vt. 解决; 应付
例句：I don't know how to tackle this problem.
我不知道该如何处理这个问题。

6. bail vt. 保释
例句：The prisoner was granted bail.
犯人被准予保释。

7. poisoning n. 中毒; 毒害; 投毒
例句：Cases of plant poisoning severe enough to warrant hospital admission are rare.
植物中毒严重至必须住院治疗的病例很少见。

8. rambling adj. 凌乱的
例句：It was easy to get lost in the rambling house.
在布局凌乱的大房子里容易迷路。

9. anecdote n. 趣闻, 轶事
例句：He told one or two amusing anecdotes about his years as a policeman.
他讲述了一两桩他当警察时的趣事。

10. hijack vt. 劫持, 绑架
例句：The plane was hijacked soon after it took off.
那架飞机起飞后不久被劫持了。

11. evolution n. 演变; 进化; 发展
例句：In the course of evolution, some birds have lost the power of flight.
在进化的过程中, 一些鸟丧失了飞行能力。